A.N. I believe this is my quickest update ever.

PARTY TIME!

I felt bad about taking so long in the other parts, so I sat down and worked on this, special for you guys. And I must say, my music worked out perfectly when I was typing this. More on that later.

Sonic Rapid Board! Join it, okay?

Http :// srb.sonicrapidboard. com

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A flurry of punches, kicks, Chaos Spears and more flew across the landscape, Shadow having to protect Espio as well, as every now and then Doom would take a shot at the unconscious ninja.

And worse of all, Shadow was losing.

Doom was a Master of his Element, and of his Chaos powers as well. Shadow was beginning to wonder how he had managed to defeat Doom the first time they fought, way back during the Black Comet, and Doom's first reemergence.

"My previous form, as powerful as it was, wasn't very suited for fighting, but for living. Then in the valley, I was still getting use to a new body," Doom chuckled and they locked hands, pushing against each other. It was like he was reading Shadow's mind.

Shadow growled and pushed harder, trying to force the Warrior of Darkness back, who merely laughed, as a dark aura began to grow around him, fusing with Doom until the super powered hedgehog became pitch black.

Grinning, Super Black Doom blew Shadow backwards, who hit the ground hard, creating a sizeable crater in the terrain.

Grunting and getting up slowly, Shadow felt the two Chaos Emeralds he had on him pulse…

"SUPER SPIRALING SONIC SPHERE!"

"MIND BLAST!"

Super Doom twisted around in mid air, as Super Sonic flew at him, a ball of Wind and Chaos energy in his hands, slamming into Doom's stomach, throwing him back, right towards Super Silver.

A powerful wave of Mind energy pulsed over Super Doom, who temporarily lost his dark aura, but quickly regained it.

"Lovely…" he spat looking around at the new comers. Super Sonic and Super Silver were floating above him, and below him stood Knuckles, Tails, Amy, Rouge, and Blaze.

Five of the Chaos Emeralds floated around them, and Doom could feel the energy pulsing into the heroes, especially as the two Shadow had floated up to join them.

Even at Doom's level of experience, he doubted his ability to defeat them all, though he'd have fun trying.

"Sorry, but I need to level the playing field," Doom smirked, then disappeared.

Tails' eyes widened in surprise as he felt hands around his shoulders, then being thrust around, a knee shoved into his back, and throw into the rubble.

"TAILS!" Sonic shouted, losing his concentration and barreling towards Black Doom.

Flipping away, he smirked, grabbing Amy's arm and twisting her around, so his sunglassed yellow eyes stared into her green ones.

"So you have some of Shadow's blood in you…Interesting," Doom chuckled, tossing Amy with ease, right at the black and red hedgehog in question, who was just getting up.

"Let's see how you deal there," Doom smirked, then snapped his fingers. Sonic was trying to heal Tails, Knuckles, Rouge, and Blaze shot forward to try and do something, and Super Silver seemed to be in shock, staring down at the demon in hedgehog's clothes.

A black aura erupted around Shadow and Amy, engulfing them.

Knuckles threw a punch, which was blocked by Doom, who then sent the echidna backwards with a concentrated Chaos Spear to the gut.

Rouge's kick sailed over his head, and the thief was blown back as well.

Blaze fought a bit smarter, staying back some and sending a few plumes of fire, which were sucked up by Doom's Darkness.

The hedgehog in question then curled into a ball and shot forward, slamming into Blaze and spinning into her, sending the cat back too.

The darkness around Shadow and Amy faded, and the two were…gone…

"Tails! TAILS!" Super Sonic shouted, holding the limp form of Tails, who was barely holding on.

Growling, Sonic got up and glared towards Doom.

"I'll take care of him!" Silver suddenly shouted, snapping back to reality. "You heal your friend."

"But," Super Sonic began. The Chaos Emeralds seemed to lay forgotten around them.

"No buts…" Super Silver answered, then warped forward.

Now Doom and Silver were engaged in battle. Doom was finding this hedgehog from another dimension tougher to deal with. For one, Silver could combine his Chaos and Elemental energies, plus, Doom didn't know Silver's fighting style.

That didn't mean Silver stood any chance of defeating him.

Super Silver twisted, bringing his arm around to slam into Black Doom, who merely laughed, catching the arm.

With a sickening crack, Super Silver's arm was broken, again, and the hedgehog reverted back to normal, eyes dilated as he let out a silent scream, falling to his knees.

"Heh heh…" Doom grinned, bringing his other arm up to finish off the hedgehog.

The ground burst from under him, a red blur slamming into his chin, forcing Doom away from Silver in a flurry of punches and rocks.

"Tougher then I thought, Guardian," Doom grinned, as Knuckles halted his assault, breathing deeply.

Glancing towards Super Sonic, who was still focused on Tails, Knuckles knew he couldn't last long.

Cocking his head to the side, Doom glanced over to the prone body of Rouge, then back towards Knuckles.

"Hmmm…" now, Doom didn't know what relationship Knuckles had with Rouge, but he knew that these heroes were willing to give their lives for one another.

"Chaos Spear!" Super Doom then bellowed, holding up his right hand, energy collecting briefly in it, straight towards Rouge.

"No…"

Knuckles felt something, something deep inside him, roaring up, wishing to be released.

It was power…Something…something he had rarely ever felt, a power he had almost never used.

A glow of energy, and a pink Knuckles had blocked the Chaos Spear.

Super Knuckles glared at Black Doom, stepping forward, letting the energy course around him.

"Sonic…Will Tails be okay?"

Doom glanced back towards Sonic, who placed Tails down gently.

"Yah…I think we need to teach this demon a lesson," Super Sonic answered.

The seven Chaos Emeralds floated around Sonic and Knuckles, who focused on their power, on top of them already being in Super forms.

"What?!" Doom shouted, shielding his eyes, despite his sunglasses, as a powerful light shined around him.

Then was a multi colored blur, and Doom found himself being slammed backwards, only to find a spiked glove getting from behind and upwards, sending him into the sky.

"Hyper forms?!" Doom shouted, Hyper Sonic appearing above him, wind lashing his quills, white eyes staring down into him.

"Heh," Sonic grinned, then brought his hands forward, sending a blast of energy and Wind downwards, barreling into Doom.

Keeping up from the small, but very deep, crater, Doom glanced around. He wasn't sure if he could defeat two Hyper forms…

Then he smiled, looking at Hyper Sonic and Hyper Knuckles.

"Fools…" Doom laughed, then drew upon the Emeralds as well.

Drawing on the negativity of the Emeralds, Doom accessed a power of the Chaos Emeralds often overlooked. While Sonic and Knuckles were using the positive power of the Emeralds, the negative power remained untapped.

Eyes widening, Sonic and Knuckles shot downwards, ready to attack.

It was to late, and in a flash of an impossible black light, Hyper Black Doom, blocked both of their attacks, and sent them into the ground himself.

"Fools…I am The Ultimate Life Form. You can not stop me."

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"It is almost ready, Son," Metal told Issai, as the two looked at the pod that would become the Robotosizer to change Metal back into a metallic being.

"What is missing, Father? I shall acquire anything you need!" Issai told him, looking towards his creator.

"There…there is something that my Elemental powers can't seem to access, but it is something I need. I want you to go get it for me. It is on the ARK," Metal answered.

After Metal gave Issai directions, the genetic creature took off, heading quickly down the halls.

Metal wondered what could be blocking his powers from reaching that area, and what exactly that part was being used for.

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Cold…Dark…

Shadow floated through infinite nothingness, or, something like it. It was pitch dark everywhere, he felt nothing, he heard nothing, he saw nothing.

Then, suddenly, a feeling…Warmth, his heart beating faster, the familiar pull of hands on him, a reassurance of sorts.

A voice, calling his name, sounding scared.

Green eyes, wide eyed, full of love.

Amy…

Shadow awoke with a start, finding Amy holding him close, crying and shouting his name, seemingly desperate.

He took in none of the surroundings, focusing solely on the fellow hedgehog, lifting his arm up and gripping her tightly, pulling Amy into a warm embrace.

"Don't worry Amy…I'm here," Shadow smiled slightly, then felt a pull, and backed up slightly, Amy now looking into his face, a smile on her face, the tears slowly.

"Thank Chaos! I was worried Shadow…There was this darkness, all around us, I could feel you slipping, right in my arms, almost like you…like you…were trying to stop existing," Amy choked out, then pulled Shadow into an even bigger hug.

"It's okay Amy, I'm not going anywhere," Shadow said reassuringly, pulling her tight as well, "Do you know where we are?"

Amy shook her head, Shadow feeling it. "No…I…I can't sense anyone, we don't have any of the Chaos Emeralds. Nothing…"

Now, Shadow took the time to look around. It was dark, but not nearly as dark as where he had been. He could see stars above him, but they were a lot different then what he was use to.

The ground was hard and gray, and they seemed to be in the middle of a rocky field.

Where this rocky field was, Shadow couldn't be sure.

But they certainly weren't in Kansas anymore.

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Hyper Sonic and Hyper Knuckles were tossed back, though they careful to make sure their unconscious friends were left alone, slowly moving the battle away from them, as Hyper Black Doom continued fighting them.

"Sonic!" Knuckles shouted, ducking a blast of Chaos Energy while Sonic used a Super Spiraling Sonic Sphere to incinerate an orb of Darkness energy, "We need to figure something out!"

"We need to combine our powers somehow!" Sonic yelled back, Doom laughing at their futile efforts.

The two warped next to each, glancing at one another.

"Hey…" Sonic said, "I have an idea."

As Sonic relayed the plan to Knuckles, Doom floated over them, smirking. He didn't hear what Sonic said, but it didn't matter. They would be dead soon. They all would be dead.

Chaos energy sprung around Hyper Sonic and Hyper Knuckles, the warp fields appearing around the two, then mingled, focusing, fusing.

"…What?" Doom wondered, more out of confusion then anything else.

"Chaos…" Sonic and Knuckles began, at the same time.

"…CONTROL!"

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A pod…A figure floating in it, definitely hedgehog shaped.

Issai stood in front of it, eyes wide.

Whatever was in that pod, was alive. It was a genetic creation, as was Issai.

And the item his Father needed was in that pod, and next to the pod was a control panel to open it.

Perhaps he should open it. It could be a new ally, someone Issai could relate too.

His hand shaking, Issai brought it to the control panel, ready to hit the 'Release' button…

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A.N. The part with Shadow and Amy, 'On The Way Down', by Ryan Cabrera was on. When I was writing the fight scene 'His World' by Zebrahead went on.

Of course, it took longer to write then the songs were, but still.

Also, we begin the showing of a third OC. Not sure when the forth one will show up. I might use him later in the story, since I also already got the author's permission to use him in the sequel spin-off.

We shall see.

Also, those who have seen 'Nazo Unleashed Part III' might know what Sonic and Knuckles are going to do.

I hope you guys enjoyed this part.

Next part, more with Vector's story, and the Chaotix. Plus, maybe Shadow and Amy as well.

Hehehe.

I do NOT own Sonic and all related titles.